There are disclosed a (2-chloro-3-oxo-l-alkenyl)bicyclo[3.3.0]octene derivative represented by the formula:
wherein R' represents -CH2CH2CH2CH2COOR5, -CH2CH2-O-CH2COOR5, -CH=CHCH2CH2COOR5 or -CH 2CH2C≡C-COOR5 group where R5 in the groups represents a hydrogen atom or an alkyl group having I to 6 carbon atoms; R2 represents a hydrogen atom, an acyl group having I to 7 carbon atoms, a tri(I to 7 carbon atoms)hydrocarbylsilyl group or a group forming an acetal bonding with an oxygen atom of a hydroxy group; R3 represents a straight or branched alkyl group having 3 to 10 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, which may be substituted by at least one alkyl group having I to 4 carbon atoms, a straight or branched alkenyl group having 3 to 12 carbon atoms, a straight or branched alkynyl group having 3 to 8 carbon atoms, a phenyl group or a phenoxy group which may have substituents, an alkoxy group having I to 6 carbon atoms or an alkyl group substituted by a cycloalkyl group having 5 to 8 carbon atoms, and a process for preparing the same which comprises reacting an aldehyde represented by the formula:
wherein R1 and R2 have the same meanings as defined above, with kotophosphonate represented by the formula:
wherein R3 has the same meaning as defined above and R4 represents an alkyl group having I to 10 carbon atoms, in the presence of a base.
公开了一种(2-
氯-3-氧代-l-烯基)双环[3.3.0]
辛烯衍
生物,由式表示:
其中R'代表-CH2CH2CH2CH2COOR5、-CH2CH2-O-CH2COOR5、-CH=CHCH2CH2COOR5或-CH 2CH2C≡C-COOR5基团,其中基团中的R5代表氢原子或具有I至6个碳原子的烷基;R2 代表氢原子、具有 I 至 7 个碳原子的酰基、三(I 至 7 个碳原子)烃基
硅烷基或与羟基的氧原子形成
缩醛键的基团;R3 代表具有 3 至 10 个碳原子的直链或支链烷基、具有 4 至 7 个碳原子的环烷基(可被至少一个具有 I 至 4 个碳原子的烷基取代)、具有 3 至 12 个碳原子的直链或支链烯基、具有 3 至 8 个碳原子的直链或支链炔基、可具有取代基的苯基或苯氧基、具有 I 至 6 个碳原子的烷氧基或被具有 5 至 8 个碳原子的环烷基取代的烷基,以及制备上述物质的工艺,该工艺包括使由 式表示的醛反应:
式中 R1 和 R2 的含义与上文所定义的相同:
其中 R3 的含义与上文所定义的相同,R4 代表具有 I 至 10 个碳原子的烷基。